Insert for an optical fiber assembly and optical fiber assembly using such an insert

An optical fiber assembly for an optical cable comprising:

• a housing with a housing lower body and a housing upper body enclosing an insert;
• sealing means for sealing the housing;
• and
• at least one optical fiber element accommodated in the housing, part of the optical cable has a cut-out portion in which a jacket of said optical cable is partially removed, thereby exposing said at least one optical fiber element, the cut-out portion of the jacket includes parallel longitudinal surfaces extending parallel to the optical fiber element in a longitudinal direction of the optical fiber element and parallel radial surfaces extending perpendicularly to the longitudinal surfaces, wherein said insert comprises:
• an optical cable guidance means for guiding said optical cable across the insert;
• a recess surrounding the exposed optical fiber element;
• and
• form fit means for suppressing an axial and rotational movement of the optical cable, wherein said form fit means are adapted to abut against the longitudinal and radial surfaces of said jacket in the cut-out portion, the form fit means comprising a crosslink having on its lower side an abutment section adapted to interact with longitudinal surfaces of the jacket in the cut-out portion, said parallel surfaces partially surrounding the optical fiber element in the longitudinal direction, and the form fit means further comprising at least one wall section adapted to interact with the radial surfaces of the jacket in the cut-out portion, and the radial surfaces define longitudinal ends of the cut-out portion.